232143131 has 8 divisors (see below), whose sum is σ = 254664000. Its totient is φ = 209858440.

The previous prime is 232143113. The next prime is 232143137. The reversal of 232143131 is 131341232.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 232143131 - 2²² = 227948827 is a prime.

It is a super-2 number, since 2×232143131² = 107780866540966322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (232143137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56981 + ... + 60918.

It is an arithmetic number, because the mean of its divisors is an integer number (31833000).

Almost surely, 2^232143131 is an apocalyptic number.

232143131 is a deficient number, since it is larger than the sum of its proper divisors (22520869).

232143131 is a wasteful number, since it uses less digits than its factorization.

232143131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118089.

The product of its digits is 432, while the sum is 20.

The square root of 232143131 is about 15236.2439925331. The cubic root of 232143131 is about 614.5897023148.

Adding to 232143131 its reverse (131341232), we get a palindrome (363484363).

The spelling of 232143131 in words is "two hundred thirty-two million, one hundred forty-three thousand, one hundred thirty-one".